The Internet is a network of networks. When computers are connected for sharing information, for communications, or for sharing tasks, the wiring connecting them and the equipment controlling these connections is called a network. Every network of computers and every single computer which connects to the Internet becomes a part of the Internet. Multiple computers are connected using the Internet to accomplish a variety of capabilities, for example email, file transfers, instant messaging, and chat rooms. The Internet grew out of the work done to develop the Advanced Research Projects Agency network, or ARPANET.
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